Machine for forming waterproof tubing around firework fuse material



March 21, 1933 J. GIOIOSA MACHINE FOR-FORMING WATERPROOF TUBING AROUNDFIREWORK FUSE MATERIAL Filed Aug. 19, 1931 2 Sheets-Sheet l[TI/126771307 (fo s 29in 01010600. by v r 1.4 M a J r 1' flb'g.

J. GlOlOSA 1,902,122 MACHINE FOR FORMING WATERPROOF TUBING AROUNDFIREWORK FUSE MATERIAL March 21, 1933.

Filed Aug. 19, 1931 2 Sheets-Sheet 2 I 717L167? Corn sepiz/ (ii/01,0600.

Jo y Patented Mar. 21, 1933 UNIT DZSTATES PATENT O E Jose-r11 GIoIosA,MILtroniyrAssAonUsEtr s MACHINE ron' roma ne wArnnrnoor rusinennounnrlnnwofnk .FUSE MATERIAL Application filed Augllst 19, 1931. semi n5.557,974.

terial to thetubing in such a manner that the loose edge .of the outerstrip of sheet material will be securely fastened and the completedtubing perceptively stiffened.

Still another ob ect-of the invention is to provide a means or quicklyand effectively drying theadhesive material. 1 g

-The invention consists ina machine for forming a moisture-resistingtubing of sheet material around firework fuse material as set forth inthe following specification and par.- ticularly as pointed out intheclaimsthereof. The machine is an improvement overa ma chine for which Ihave applied for Letters Patent of the: United States Serial No.526,108, filed March as, 1931. 7

Referring to the drawings 2'- Fig. l'represents a plan view of a-machine for forming tubing embodying my invention. i i -Fig. 2 is anenlarged transverse section taken on the line 2+2, Fig.1.

Fig. 3 is an enlarged vertical longitudinal section taken on the -line3.-3 of Fig.1. K

Fig. 4 is an enlarged front elevation of a portion of the partsillustrated in Fi'g. 1.

Fig. 5 is an enlarged transverse section partly in elevation takenon theline l 5 0f Fig. 4.

Fig. 6 is an enlarged transverse section taken on the line 66 of Fig. 4.

Fig. 7 is an enlarged transverse section partlyin elevation taken on theline 77 of Fig. 4. Y

Fig. 8 is an'enlarged transverse taken on the line 8-8 of Fig. 4.

section "Fig. 9 an enlarged transverse section taken on the line 9-9 ofFig. 1.

Fig. 10 is a side elevation of the tubular member whichprevents thepaper tubing from collapsing during the feeding operation. 1 I

Like numerals refer to like parts through-' out the several} views ofthe drawings.

, In the d-rawings,;l2 is a frame constructed in the form of arectangular plate, and 13 and 14 are strips vof sheet material.preferably paper,- Which are led from rolls'of said material to a pointabove one end of said frame. The strip'of paper 13 is preferably widerthan the strip 14, and the latter strip is treatedwith or constructed ofa material which will render itmoist ure proof. The str ps of paper 13and 14 are fed between a pa1r of verticalv guide members 15, preferablyformed of rubber and mounted upon vertical 1 studs 16. w

1 From, the .guide members15, the. strips of material 13 and 14-passtoand'through a frusto-coni'cal forming member 17 which is mounted'upon abracket 18 in turn supported upon the frame 12. The frusto-conicalforming member17 tapers in the direction toward which the sheets ofmaterial are fed. Mounted in the frusto-conical member 17 and positionedeccentrica-ll-y, with relation thereto is'a frusto-conical guide member1-9, the outer periphery of which is secured to the. inner surface ofthe frusto-conicalmember 17. By

mounting the member19 within the member 17 acresoent-shaped space 20 isformed within the guide member17 audit is through this spacethat thestrips of sheet material 13 and 14 pass; andwhen said strips emerge fromthe forming member-l7 their adjacent faces contact with each other andthey are bent in semi-tubular form; see Figs. 5 and 6. d d From theforming member 17 the strips of sheetfnaterial Band 14 pass to a spiralforming member "21 mounted upon .a bracket 22 in turn supported upon theframe-12. The forming member 21 tapers longitudinally thereof in thedirection toward which the 1 strips of sheet material are fed and isspiral in cross-sectlonal con-tour, see F g. 7 As the, I

strips of sheet material are fed into the forming member 21 they areprogressively bent into spiral form and reduced in diameter, and whensaid strips emerge from said member, the narrow strip 14 has assumed atubular formation and one edge portion of the wide strip 13 has assumeda tubular formation around the strip'14, while the remainder of thestrip 13'eXtends laterally therefrom at 23, see Fig. 8.

From the forming member 21 the partially formed tubing extends into andthrough a reservoir 24 for a suitable adhesive material which contactsdirectly with allof the exposed portion of the strip 13, which includesboth faces of the laterally projecting portion 23 of said strip. Inpassing outwardly from the reservoir 24 the sheet material passesthrough a rubber tube 25 which acts to fold the port-ion the-strip 13against the tubular portion of said strip and at-the same time wipe thetubing and limit the amount of adhesive mate'rial'which is allowed toadhere to the outer periphery of said tubing. 1

From the reservoir '24 the completely formed tubing 26 passes into andthrough a drying device 27 embodying therein a container 28 in which aquantity of water is located. In passing through thedrying device 27,the tubing 26 passes through a rigid tubular member 29 which preventsthe water from contacting with said tubing. The container 28 restsuponan electrical heating apparatus 30 of any suitable construction and thewater within the container 28 is heated thereby. As the tubing 26emerges from the tubular member 29 it passes into and through anothertubular member 31 constructed of rubber, wliich exerts a yieldingpressure against the peripheryof said tubing.

The strips of sheet material13 and 14' are fed through the formingmembers 17 and 21, reservoir 24-and drying device 27by means of feedrolls32and 33 which are located upon opposite sides of thecomplete'dtubing 26 adjacent to the point where said tubing emerges from thetubular member 31. The feed rolls 32 and 33 are formed of rubber orother suitable material which will frictionally engage the tubing'and'exerta strong pulling action thereon. Therolls 32 and 33 are rigidlyfastened t o"'a- 'driving shaft 34,

and couutershaft35 respectively,and said shafts are'connected togetherand rotate in unison by gears 36 and 37.2 The driving shaft 34 may be.driven in any suitablelmannerg' To nevent the completed tubing 26 from vcollapsing between the feed rolls 32 and 33 a tubular member 38 ispositioned within the completed tubing at the point where said rollspress tliereagainst. The tubular member 38 is prevented from being drawnforwardly with tie tubing 26 by being connected by means of a wire 39with the forming member 17, where a hook portion 40f0rined upon the of aguide roll 41 mounted upon a bearing 42, being guided to said guide rollthrough a tubular guide member 43 mounted in a bracket 44 supported uponthe frame 12.

The general operation of the mechanism hereinbeforespecificallydescribed is as follows :Assuming that the strips of sheetmaterial 13 and 14, positioned as illustrated in Fig. 2, have beenthreaded successively through the forming members 17 and 21, reservoir'24, rubber tube 25, rigid tubular member 29 and rubber tube 31, and atthe same time formed into a tube around the continuous piece of fusematerial A,'thefeed rolls 32 and are. started-in operation to pull thestrips of sheet material through the members mentioned. As the strips ofsheet material pass through the frusto-conical forming member 17, theflat strips of material are bent into semi-tubular form, with the sidestrip 13 partly enclosing. the narrow strip 14, and at the same timeboth of the strips of material are caused to taperslightly in thedirection toward which they arefed. From the forming member 17 thepartially formed tubing is fed to the spiral: forming member 21,-whereit is still further bent to entirely enclose the fuse material A and toforce the portion 23 of the strip of sheet material 13 against thetubular portion of said strip and also to wipe the excess of adhesivefrom the peripheryflof thetubing.- The tubing then passes to the dryingdevice 27where upon passing through the rigid tubular member 29 it issubjected to a sutficientamount of heat to cause the adhesive materialto dry quickly, and finally, the tubing passes through another rubbertube 31 where itreceives a final wiping operation. As the tubing 26 isfed through the various forming members'the endless piece offusematerial A will be pulled along in unison with the tubing and thestrips of sheet material 13 and 14 will be progressively formed aroundthefuse material.

It. is evident that. if it is so desired, the

feeding mechanism for the tubing may be omitted and the tubing fedthrough the apparatus by hand.

I claim:

1. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, and meansto bend said strips longitudinally thereof into tubular form, one withinanother.

2. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof into tubular form, one withinanother, and means to apply an adhesive material to the outer of saidtubular strips.

3. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof into tubular form, one withinanother, means to apply an adhesive material to the outer of saidtubular strips, and means to dry said adhesive material.

4. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof simultaneously one aroundanother into semi-tubular form, means to bend said semi-tubular portionsinto spiral form, and means to finally bend said spiral portions intotubular form.

5. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof simultaneously one aroundanother into semi-tubular form, means to bend said semi-tubular portionsinto spiral form,

means to apply an adhesive material to the outer of said partly bentstrips, and means to finally bend the spiral portion into tubular form.

6. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof simultaneously one aroundanother into semi-tubular form, means to bend said semi-tubular portionsinto spiral form, means to apply an adhesive material to the outer ofsaid partly bent strips, and means to finally bend the spiral portionsinto tubular form and wipe the excess of adhesive material from theperiphery of the tubing.

7. A machine of the character described having, in combination, means toposition a plurality of strips of sheet material face to face, means tobend said strips longitudinally thereof simultaneously one aroundanother into semi-tubular form, means to bend said semi-tubular portionsinto spiral form, means to apply an adhesive material to the outer ofsaid partly bent strips, means to finally bend the spiral portions intotubular form and Wipe the excess of adhesive material from the face, afrusto-conical forming member, a

spiral forming-member, means to feed the strips of sheet material inunison through the forming members, means to apply an adhesive materialto a strip of sheet material during" the feeding movement, and means towipe the strlp having the adhesive material th'ereon.

9. In combination, means for feeding a continuous piece of fuse materialand ap'lurality of strips of sheet material ofdifferent I Widthspositioned face to face, means to bend thewider of said strips aroundthe narrower of said strips and both of the strips to form a tubingaround said fuse, means to apply an adhesive material to the outer ofsaid bent strips, and means to Wipe the periphery of said tubing. I

10. In combination, means for feeding a continuous piece of fusematerial and a plurality of strips of sheet material of different Widthspositioned face to face, means to bend the wider of said stripslongitudinally thereof to partially enclose the fuse, means to engagethe partially bent wide strip and progressively force both of the stripsinto spiral form around the fuse, means to apply an adhesive material tothe outer bent strip, and means to finally bend the spiral portions ofboth strips into tubular form around the fuse.-

11. In combination, means for feeding a continuous piece of fusematerial and a pluralitv of strips of sheet material of different widthspositioned'face to face,means to bend the wider of said stripslongitudinally thereof to partially enclose the fuse, means to engagethe partially bent wide strip and progressively force both of the stripsinto spiral form around the fuse, means to apply an ad hesive materialto the outer bent strip, and

means tofinally bend the spiral portions of both strips into tubularform around. the fuse and wipe the excess of adhesive material from theperiphery of the formed tubing.

12. In combination, means for feeding a continuous piece of fusematerial and a plurality of strips of sheetmaterial of differentwidths'positioned face to face, means to bend the wider of said stripslongitudinally thereof to partially enclose the fuse, means to engagethe partially bent wide strip and progressively force both of the stripsinto spiral form around the fuse, means to apply an ad hesive materialto the outer bent'strip, means to finally bend the spiral portions ofboth strips into tubular form around the fuse, and

means to heat the formed tubing to dry the adhesive material thereon.

13. In combination, means for feeding a continuous piece of fusematerial and a. plurality of strips of sheet material of differentWidths positioned face to face, means to bend t 1e Wider of said stripslongitudinally thereof to partially enclose the fuse, means to engagethe partially bent Wide strip and progressively force both of the stripsinto spiral form around the fuse, means to apply an adhesive material tothe outer bent strip, means to finally bend the spiral portions of bothstrips into tubular form around the fuse and Wipe the excess of adhesivematerial from the periphery of the formed tubing, a tubular memberthrough-Which the formed tubing is fed, and means to heat said tubularmember.

In testimony whereof I have hereunto set my hand.

JOSEPH GIOIQSA.

